The Hornady #53 Press Type Shellholder is precision machined from solid steel and heat treated for reliable reloading of multiple cartridge calibers including .380 ACP .221 Remington Fireball and .204 Ruger.Hornady #53 Press Type ShellholderCompatible calibers: .380 ACP .221 Remington Fireball 6mm TCU .222 Remington Magnum 7x47mm Helm .20 Tactical .204 RugerPrecision machined from solid steel constructionHeat treated for durability and flawless operationFits Hornady Handheld Priming Tool and Cam-Lock Case TrimmerUniversal compatibility with most press brandsEssential for reloaders seeking reliable precise shellholding across multiple cartridge types with professional-grade construction and broad press compatibility.